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Tackling Depression and Anxiety: A Working Memory Intervention

18. april 2014 opdateret af: Ingmar Franken, Erasmus Medical Center

Effects of Working Memory Training in a Depressed and Anxious Sample

Anxiety and depression are both associated with impairments in executive functions, including working memory (WM) which is needed to maintain and manipulate goal-relevant information. Due to these WM impairments anxious and depressed individuals have difficulties inhibiting and shifting from irrelevant (negative) information and updating goal relevant information. This study explored whether training WM decreases these impairments and reduces clinical symptoms and rumination. Eighty-four individuals diagnosed with major depression and forty-nine individuals with an anxiety diagnosis executed WM or control tasks three times a week, during four weeks. Before, after training and at a two months follow-up measurement depression and anxiety symptoms, WM capacity and rumination behaviour were assessed. Training WM did only result in a reduction of anxiety symptoms in the depression group. These findings are inconsistent with promising results of individual studies showing training WM result in an enlarged WM capacity and a decrease of psychopathological symptoms. However, our results are in line with recent meta-analyses and reviews which show that WM training do not lead to generalized effects and therefore, doubt the clinical relevance of WM training programs.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

240

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

  • Holland
    • Zuid Holland
      • Rotterdam, Zuid Holland, Holland, 3000 DR
        • Erasmus University Rotterdam

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

16 år til 68 år (Barn, Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • Major depression diagnosis
  • Anxiety disorder diagnosis

Exclusion Criteria:

  • Current psychosis
  • Current substance dependency

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Dobbelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Træning af arbejdshukommelse
Adfærdsmæssigt: Working memory training
The WM consisted of two tasks; the Number-letter task (Rogers & Monsell, 1995) and an Updating task. The Number-letter task trains the ability to shift between task relevant stimuli. Participants need to shift between four categories. In the Updating task participants receive a set of three words in which they have to compare the two consecutive words on emotional valence (positive or negative) to train their updating skills. Participants executed the training three times a week during four weeks.
Placebo komparator: Placebo træning
Adfærdsmæssigt: Placebo training
Both the WM and the placebo training consisted of two tasks; the Number-letter task (Rogers & Monsell, 1995) and an Updating task. To prevent training WM the placebo training was a simplified version of the Number-letter task in which shifting was not required. In the Updating task the placebo group only had to count the number of positive or negative words. Participants executed the training three times a week during four weeks.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Beck Depression Inventory Second Edition (BDI-II) score change between pre and post training and at follow-up measurement (2 months after post measurement)
Tidsramme: Pre training (baseline), post training (4 weeks after baseline, training starts 1 day after baseline) and follow-up (2 months after post-test)
Depression is measured with the BDI-II
Pre training (baseline), post training (4 weeks after baseline, training starts 1 day after baseline) and follow-up (2 months after post-test)

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
State-Trait Anxiety Inventory (STAI) scores change from pre to post training and to follow up measurement (2 months after post measurement)
Tidsramme: Pre training (baseline), post training (4 weeks after baseline, training starts 1 day after baseline) and follow-up (2 months after post-test)
The STAI measures state, trait and total anxiety
Pre training (baseline), post training (4 weeks after baseline, training starts 1 day after baseline) and follow-up (2 months after post-test)

Andre resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Ruminative Response Scale (RRS) score change between pre and post training and follow up (two months after post)
Tidsramme: Pre training (baseline), post training (4 weeks after baseline, training starts 1 day after baseline) and follow-up (2 months after post-test)
The RRS measures rumination
Pre training (baseline), post training (4 weeks after baseline, training starts 1 day after baseline) and follow-up (2 months after post-test)
Symmetry Span score change between pre and post training and at follow-up measurement (2 months after post measurement)
Tidsramme: Pre training (baseline), post training (4 weeks after baseline, training starts 1 day after baseline) and follow-up (2 months after post-test)
The Symmetry Span measures working memory capacity
Pre training (baseline), post training (4 weeks after baseline, training starts 1 day after baseline) and follow-up (2 months after post-test)
Internal shift task score change between pre and post training and at follow-up measurement (2 months after post measurement)
Tidsramme: Pre training (baseline), post training (4 weeks after baseline, training starts 1 day after baseline) and follow-up (2 months after post-test)
The internal shift task measures working memory capacity
Pre training (baseline), post training (4 weeks after baseline, training starts 1 day after baseline) and follow-up (2 months after post-test)

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Erasmus Medical Center

Efterforskere

  • Ledende efterforsker: Elke Geraerts, PhD, Erasmus University Rotterdam
  • Studieleder: Sabine Wanmaker, MSc, Erasmus University Rotterdam

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart

1. april 2011

Primær færdiggørelse (Faktiske)

1. oktober 2011

Studieafslutning (Faktiske)

1. oktober 2011

Datoer for studieregistrering

Først indsendt

8. april 2014

Først indsendt, der opfyldte QC-kriterier

18. april 2014

Først opslået (Skøn)

22. april 2014

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Skøn)

22. april 2014

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

18. april 2014

Sidst verificeret

1. april 2014

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • 1

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

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